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diff --git a/com/lispworks/README b/com/lispworks/README
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+This directory contains command scripts used for building Yale Haskell
+from the source distribution under Lispworks from Harlequin.  We have
+been using version 3.1.1 on a Sparc.
+
+Developers need to source haskell-development instead of haskell-setup
+in the .cshrc file.
+
+Important: Make sure you load the stuff in the patches directory
+before trying to build the system (the command files do this for you).
+If you're building on some platform other than a sparc, you'll have to
+get equivalent patches from Harlequin before proceeding.
+
+To rebuild the system:
+
+* You need to define environment variables Y2 and LISPWORKS to point to the
+  appropriate pathnames.  See the haskell-development script for details.
+
+* Make sure that the environment variable PRELUDEBIN (in the 
+  haskell-setup script) points to $PRELUDE/lispworks.
+
+* Execute the "compile" script.  This will recompile all of the Lisp 
+  source files that make up the Yale Haskell system.  Compiled files are
+  put in the "lispworks" subdirectory of each source directory.
+
+* Execute the "build-prelude" script to compile the standard prelude.  
+  Note that this process tends to use up a huge amount of memory!
+
+* Execute the "savesys" script to build a new executable.
+
+* The new executable is initially called "bin/new-lispworks-haskell".  Try
+  it out.  If it works, you should rename it to "bin/lispworks-haskell".
+  Make sure that HASKELLPROG (in the haskell-setup script) is correct.
+
+* If you want to build an executable with the X support, you'll also
+  need to run the "build-xlib" and "savesys-xlib" scripts.  You may
+  need to edit these scripts to load the CLX library explicitly if
+  you are using a Lisp executable that doesn't have CLX pre-loaded.
+
+When you compile things with the Lispworks compiler, you'll see a
+bunch of messages complaining about forward references to things that
+haven't yet been defined.  We haven't been able to figure out how to
+suppress these messages, so unless something else goes wrong you should
+just ignore them.
diff --git a/com/lispworks/build-prelude b/com/lispworks/build-prelude
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+#!/bin/csh
+#
+# build-prelude -- recompile the prelude, saving the old one as old-prelude.*
+#
+#
+cd $Y2
+setenv PRELUDEBIN $Y2/progs/prelude/lispworks
+if (-e $PRELUDEBIN/Prelude.wfasl) then
+  rm $PRELUDEBIN/old*
+  foreach i ($PRELUDEBIN/Prelude*.{wfasl,scm})
+    mv $i $PRELUDEBIN/old-$i:t
+    end
+  endif
+$LISPWORKS <<EOF
+(load "com/lispworks/patches/safe-fo-closure.wfasl")
+(make-package "MUMBLE-IMPLEMENTATION" :use '("LISP"))
+;; Need a bigger than normal stack for compiling the prelude.
+(setf system::*stack-overflow-behaviour* :warn)
+;; Need a big heap to compile the prelude.
+;(lcl:change-memory-management :expand 512 :growth-limit 2048)
+;; If you want to recompile
+;; everything from scratch, execute the "clean" script first, or
+;; else use the "compile" script to do this.
+(proclaim '(optimize (speed 3) (safety 0) (compilation-speed 0)))
+(load "cl-support/cl-init")
+(in-package :mumble-user)
+(setf *printers* '(phase-time dump-stat))
+(setf *optimizers* *all-optimizers*)
+;; Set appropriate compiler settings for processing the prelude.
+;; Don't try to compile the interface files.
+(setf *code-chunk-size* 300)
+(setf *compile-interface* '#f)
+(compile/compile *prelude-unit-filename*)
+(lw:bye)
+EOF
diff --git a/com/lispworks/build-xlib b/com/lispworks/build-xlib
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+#!/bin/csh
+#
+# build-xlib -- recompile the xlib stuff
+#
+# note that lispworks comes with clx pre-loaded!
+cd $Y2
+setenv LIBRARYBIN $Y2/progs/lib/X11/lispworks
+rm $LIBRARYBIN/xlib*.wfasl
+bin/lispworks-haskell <<EOF
+:(setf *code-quality* 3)
+:compile \$HASKELL_LIBRARY/X11/xlib
+EOF
diff --git a/com/lispworks/clean b/com/lispworks/clean
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+++ b/com/lispworks/clean
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+#!/bin/csh
+#
+# delete lispworks binaries
+'rm' $Y2/*/lispworks/*.{wfasl}
+
diff --git a/com/lispworks/compile b/com/lispworks/compile
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+++ b/com/lispworks/compile
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+#!/bin/csh
+#
+# compile -- compile the Yale Haskell system from scratch.
+#
+#
+cd $Y2
+$LISPWORKS <<EOF
+(load "com/lispworks/patches/safe-fo-closure.wfasl")
+(make-package "MUMBLE-IMPLEMENTATION" :use '("LISP"))
+(proclaim '(optimize (speed 3) (safety 0) (compilation-speed 0)))
+(load "cl-support/cl-init")
+(lw:bye)
+EOF
diff --git a/com/lispworks/patches/safe-fo-closure.wfasl b/com/lispworks/patches/safe-fo-closure.wfasl
new file mode 100644
index 0000000..71c9a5f
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+++ b/com/lispworks/patches/safe-fo-closure.wfasl
diff --git a/com/lispworks/savesys b/com/lispworks/savesys
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+#!/bin/csh
+#
+# savesys -- build a saved executable in bin/new-lispworks-haskell
+#
+#
+cd $Y2
+setenv PRELUDEBIN $Y2/progs/prelude/lispworks
+if !(-e $PRELUDEBIN/Prelude.wfasl) then
+  echo "Build the prelude first, stupid..."
+  exit
+  endif
+$LISPWORKS <<EOF
+;;; Load the Haskell system.
+(load "com/lispworks/patches/safe-fo-closure.wfasl")
+(make-package "MUMBLE-IMPLEMENTATION" :use '("LISP"))
+(load "cl-support/cl-init")
+;;; Set various internal switches to appropriate values for running
+;;; Haskell code.
+(proclaim '(optimize (speed 3) (safety 0) (compilation-speed 0)))
+(setf *load-verbose* nil)
+(setf *compile-verbose* nil)
+(in-package :mumble-user)
+(setf *printers* '(compiling loading))
+(setf *optimizers* '())
+(setf *compile-interface* '#f)
+;;; Load the prelude
+(compile/load *prelude-unit-filename*)
+;;; Set up the saved system.
+(define (haskell-toplevel)
+  ;; Need to reset pathname defaults
+  (setf lisp:*default-pathname-defaults* (lisp:truename ""))
+  (load-init-files)
+  (do () ('#f)
+    (lisp:with-simple-restart (restart-haskell "Restart Haskell.")
+      (heval))))
+(define (restart-haskell)
+  (lisp:invoke-restart 'restart-haskell))
+(lw:save-image "bin/new-lispworks-haskell"
+  :gc '#t
+  :normal-gc '#f  ; don't reset gc parameters
+  :restart-function 'haskell-toplevel)
+(lw:bye)
+EOF
diff --git a/com/lispworks/savesys-xlib b/com/lispworks/savesys-xlib
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+#!/bin/csh
+#
+# savesys -- build a saved executable in bin/new-lispworks-haskell
+#
+#
+cd $Y2
+setenv PRELUDEBIN $Y2/progs/prelude/lispworks
+if !(-e $PRELUDEBIN/Prelude.wfasl) then
+  echo "Build the prelude first, stupid..."
+  exit
+  endif
+setenv LIBRARYBIN $Y2/progs/lib/X11/lispworks
+if !(-e $LIBRARYBIN/xlib.wfasl) then
+  echo "Build the xlib stuff first, silly..."
+  exit
+  endif
+$LISPWORKS <<EOF
+;;; Load the Haskell system.
+(load "com/lispworks/patches/safe-fo-closure.wfasl")
+(make-package "MUMBLE-IMPLEMENTATION" :use '("LISP"))
+(load "cl-support/cl-init")
+;;; Set various internal switches to appropriate values for running
+;;; Haskell code.
+(proclaim '(optimize (speed 3) (safety 0) (compilation-speed 0)))
+(setf *load-verbose* nil)
+(setf *compile-verbose* nil)
+(in-package :mumble-user)
+(setf *printers* '(compiling loading))
+(setf *optimizers* '())
+(setf *compile-interface* '#f)
+;;; Load the prelude.
+(compile/load *prelude-unit-filename*)
+;;; Load the X support.
+(compile/load "\$HASKELL_LIBRARY/X11/xlib")
+(setf *haskell-compiler-update* 
+	(string-append *haskell-compiler-update* "-X11"))
+;;; Set up the saved system.
+(define (haskell-toplevel)
+  ;; Need to reset pathname defaults
+  (setf lisp:*default-pathname-defaults* (lisp:truename ""))
+  (load-init-files)
+  (do () ('#f)
+    (lisp:with-simple-restart (restart-haskell "Restart Haskell.")
+      (heval))))
+(define (restart-haskell)
+  (lisp:invoke-restart 'restart-haskell))
+(lw:save-image "bin/new-lispworks-clx-haskell"
+  :gc '#t
+  :normal-gc '#f  ; don't reset gc parameters
+  :restart-function 'haskell-toplevel)
+(lw:bye)
+EOF